How to install/remove? Hollowgram K22101 self extracting bolts on 2021 and newer cranks | Mountain Bike Reviews Forum
HACK On How To Remove Cannondale Hollowgram Crankset With Simple Tools. - YouTube
What tools do I need to remove/change/perform maintenance on this BB30/ Cannondale carbon SI crank? It's a 2006 Cannondale six13 Team 1 DA. Can I use some universal pullers or what should I